采用一种简便的方法合成了氮掺杂空心TiO:纳米粒子.以聚苯乙烯(PS)纳米粒子为模板、氨水为催化剂、三乙醉胺为抑制剂,采用溶胶-凝胶方法合成了PS/TiOZ(核/壳)纳米复合粒子.考察了氨水、三乙醉胺和钛酸正丁酯用量对TiO:壳层表面形态和厚度的影响.氨水用量3.OOg时TiO2壳层表面较光滑,氨水用量6.OOg时其表面变得粗糙;三乙醉胺用量0.10g时TiO2壳层表面较粗糙,三乙醇胺用量0.20g时其表面变得光滑;钛酸正丁酯1.00和3.OOg时,TiO2壳层厚度为25和43nm.研究中三乙醉胺同时又作为氮掺杂剂,通过煅烧得到了氮掺杂空心TiO2纳米粒子,它时可见光具有光响应.
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